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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2017-05-25 08:51:48 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2017-08-17 07:26:05 -0700 |
| commit | ccdd29ffffa7246cb359b9408772858a15fc4ea5 (patch) | |
| tree | c3267c792e96692f57e28f740ff42a4a1395487b /include/linux/rcupdate.h | |
| parent | 7e42776d5ed1fe9a941ed8876c5d15cd7cf5d89f (diff) | |
| download | lwn-ccdd29ffffa7246cb359b9408772858a15fc4ea5.tar.gz lwn-ccdd29ffffa7246cb359b9408772858a15fc4ea5.zip | |
rcu: Create reasonable API for do_exit() TASKS_RCU processing
Currently, the exit-time support for TASKS_RCU is open-coded in do_exit().
This commit creates exit_tasks_rcu_start() and exit_tasks_rcu_finish()
APIs for do_exit() use. This has the benefit of confining the use of the
tasks_rcu_exit_srcu variable to one file, allowing it to become static.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'include/linux/rcupdate.h')
| -rw-r--r-- | include/linux/rcupdate.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index c3f380befdd7..ce9d21923d75 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -162,8 +162,6 @@ static inline void rcu_init_nohz(void) { } * macro rather than an inline function to avoid #include hell. */ #ifdef CONFIG_TASKS_RCU -#define TASKS_RCU(x) x -extern struct srcu_struct tasks_rcu_exit_srcu; #define rcu_note_voluntary_context_switch_lite(t) \ do { \ if (READ_ONCE((t)->rcu_tasks_holdout)) \ @@ -176,12 +174,15 @@ extern struct srcu_struct tasks_rcu_exit_srcu; } while (0) void call_rcu_tasks(struct rcu_head *head, rcu_callback_t func); void synchronize_rcu_tasks(void); +void exit_tasks_rcu_start(void); +void exit_tasks_rcu_finish(void); #else /* #ifdef CONFIG_TASKS_RCU */ -#define TASKS_RCU(x) do { } while (0) #define rcu_note_voluntary_context_switch_lite(t) do { } while (0) #define rcu_note_voluntary_context_switch(t) rcu_all_qs() #define call_rcu_tasks call_rcu_sched #define synchronize_rcu_tasks synchronize_sched +static inline void exit_tasks_rcu_start(void) { } +static inline void exit_tasks_rcu_finish(void) { } #endif /* #else #ifdef CONFIG_TASKS_RCU */ /** |